Device for giving positive motion to sliders of printing-presses



(No Model.)

B. MIEHLE.

DEVIGE FOR GIVING POSITIVE MOTION T0 SLIDERS OF PRINTING PRESSES. No. 330,040. Patented Nov. 10, 1885 m N w IIIIIIIII III/I I III/III/I/ VIIII/II N. PETERS. Phowumn m her, Wnhinglnn, DI Cv ill? 1 Z2 WITNESSE$.

: INITED STATES PATENT OFFICE.

ROBERT MIEHLE, OF CHICAGO, ILLINOIS.

DEVICE FOR GIVING POSITIVE MOTION TO SLlDERS OF PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 330,040, dated November 10, 1885.

Application filed March 7, 1885. Serial No. 158,091. (No model.)

To all whom it may concern:

Be it known that I, ROBERT MIEHLE, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful invention in Devices for Giving Positive Motion to Sliders of Printing-Presses, of which the following is a specification-to Wit:

This invention relates to that class of printing-presses in which the press-bed is reciprocated in tracks or ways in which are fitted slider-frames with anti-friction rollers for the bed to travel upon. The sliders in working properly should have a reduced movement just onehalf of that which is imparted to the bed, and to keep the sliders positively in their proper working position a separate device is necessary.

The object of this invention is to provide in connection with the slider-frames a very simple and effective device and construction of parts, by which the slider-frames are positively kept in their proper working position in relation with the movement of the press-bed.

In order to enable others skilled in the art to which myinvention appertains to make and use the same, I will now describe its construction and operation, reference being had to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section of the present invention; Fig. 2, a transverse vertical section of the same. Fig. 3 is a longitudinal vertical section of a modified form of the present invention; Fig. 4, a transverse vertical section of the same, showing one of the belts in section.

A represents a press-framc,which may be of any of the usual constructions; B, apress-bed, which is usually reciprocated horizontally in tracks or ways B, into which are fitted sliderframes 0 0, containing anti-friction rollers 0, upon which the bed B rests.

In operation the pressbed B receives a re ciprocating movement by any suitable mechanism,which it is thought unnecessary to sh ow. It is evident that the bed B should impart to the slider-frames c c a movement just onehalf of that received by the said bed; but in practice the slider-frames have a tendency to alter their proper position in relation to the said bed, and to prevent the s ame altering their position there is secured to the under side of the bed B a hanger, g, and thereto is connected a belt, D,which passes around the pulleys ff, the said pulleys being secured to the sliderframe 0. The ends of the belt are then extended to the center of the press, and are connected to the hanger g, secured to. the stationary track or way B.

The operation of the device just described being such that when the bed B receives a reciprocating movement the belt D will be drawn around the pulleys fin such manner as to impart to the slider-frame 0 a reduced movement, just one-half the movement of the bed B at any time the slider'frame has a tendency to alter its proper position in relation to the bed B. The other slider, c, is kept in its proper position by the crossbar F, which is connected to both the slider-frames c 0, so that they will move together, or the sliderframe 0 may be fitted the same as the sliderframe 0. Each slider-framein that case would act independently of the other.

The present invention may be somewhat modifiedfor instance, as shown in Figs. 3 and 4, in which a pulley, f,, is placed at the center of the slider-frame 0, and the belt is dividedinto two parts, D D, as indicated in Figs. 3 and 4, which are connected to hangers g g at each end of the bed B, thence passing around the pulley f, and connected to the hangers g 9 upon the track or way B. It will evidently be seen that the operation of this arrangement is similar to the one heretofore described; and, furthermore,one of the beltsDD may be dispensed with, and in such case the belt would be arranged in a manner to pass around but one side of the pulley, its function then being only to limit the movement of the slider-frame in the direction it has a tendency to alter or shift from its proper position.

It is evident that a cord or wire rope, and also a metal band or chain, orany other suitable material having enough flexibility to wind around the pulleys,1nay be applied,instead of a'belt, as herein described. I therefore do not limit myself to the use of a belt.

What I claim as new, and desire to secure by Letters Patent, is-

1. In combination with the slider-frame of a printingpress, a belt connected to the pressbed and press-frame, passing around a pulley which is connected to the slider-frame to impart a reduced movement to the slider, substantiaily as described.

2. In combination with the s1ider-frame of a printing-press, a belt connected to the pressbed and press-frame, passing around pulleys which are connected to the slider-frame to impart a reduced movement to the slider, substantially as described.

3. In combination with the slider-frame of a printing-press, a belt connected to the pressbed and press-frame, and passing around pulleys which are connected to the'siider-frame and cross-barF to impart a reduced movement toboth sliders, substantially as described.

5 In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT MIEHLE.

Witnesses:

HENRY SCHAFER, GEORGE W. FRITZ. 

